Thermal Annealing and Phase Transformation of Serpentine-Like Garnierite

This study is focused on the vibrational and microstructural aspects of the thermally induced transformation of serpentine-like garnierite into quartz, forsterite, and enstatite occurring at about 620 °C. Powder specimens of garnierite were annealed in static air between room temperature and 1000 °C...

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Main Authors:	Arun Kumar, Michele Cassetta, Marco Giarola, Marco Zanatta, Monique Le Guen, Gian Domenico Soraru, Gino Mariotto
Format:	Article
Language:	English
Published:	MDPI AG 2021-02-01
Series:	Minerals
Subjects:	garnierite phase transformation TGA/DSC XRD micro-Raman spectroscopy
Online Access:	https://www.mdpi.com/2075-163X/11/2/188

id	doaj-39f4b2a397fa4f7cb618e1c67e6e4d16
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spelling	doaj-39f4b2a397fa4f7cb618e1c67e6e4d162021-02-12T09:07:09ZengMDPI AGMinerals2075-163X2021-02-011118818810.3390/min11020188Thermal Annealing and Phase Transformation of Serpentine-Like GarnieriteArun Kumar0Michele Cassetta1Marco Giarola2Marco Zanatta3Monique Le Guen4Gian Domenico Soraru5Gino Mariotto6Department of Computer Science, University of Verona, 37134 Verona, ItalyDepartment of Computer Science, University of Verona, 37134 Verona, ItalyCentro Piattaforme Tecnologiche (CPT), University of Verona, 37134 Verona, ItalyDepartment of Physics, University of Trento, 38123 Povo, Trento, ItalyInnovation Technology Direction, ERAMET IDEAS, 78190 Trappes, FranceDepartment of Industrial Engineering, University of Trento, 38123 Povo, Trento, ItalyDepartment of Computer Science, University of Verona, 37134 Verona, ItalyThis study is focused on the vibrational and microstructural aspects of the thermally induced transformation of serpentine-like garnierite into quartz, forsterite, and enstatite occurring at about 620 °C. Powder specimens of garnierite were annealed in static air between room temperature and 1000 °C. The kinetic of the transformation was investigated by means of thermogravimetric and differential thermal analysis, and the final product was extensively characterized via micro - Raman spectroscopy and X-ray diffraction. Our study shows that serpentine-like garnierite consists of a mixture of different mineral species. Furthermore, these garnierites and their composition can provide details based on the mineralogy and the crystalline phases resulting from the thermal treatment.https://www.mdpi.com/2075-163X/11/2/188garnieritephase transformationTGA/DSCXRDmicro-Raman spectroscopy
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Arun Kumar Michele Cassetta Marco Giarola Marco Zanatta Monique Le Guen Gian Domenico Soraru Gino Mariotto
spellingShingle	Arun Kumar Michele Cassetta Marco Giarola Marco Zanatta Monique Le Guen Gian Domenico Soraru Gino Mariotto Thermal Annealing and Phase Transformation of Serpentine-Like Garnierite Minerals garnierite phase transformation TGA/DSC XRD micro-Raman spectroscopy
author_facet	Arun Kumar Michele Cassetta Marco Giarola Marco Zanatta Monique Le Guen Gian Domenico Soraru Gino Mariotto
author_sort	Arun Kumar
title	Thermal Annealing and Phase Transformation of Serpentine-Like Garnierite
title_short	Thermal Annealing and Phase Transformation of Serpentine-Like Garnierite
title_full	Thermal Annealing and Phase Transformation of Serpentine-Like Garnierite
title_fullStr	Thermal Annealing and Phase Transformation of Serpentine-Like Garnierite
title_full_unstemmed	Thermal Annealing and Phase Transformation of Serpentine-Like Garnierite
title_sort	thermal annealing and phase transformation of serpentine-like garnierite
publisher	MDPI AG
series	Minerals
issn	2075-163X
publishDate	2021-02-01
description	This study is focused on the vibrational and microstructural aspects of the thermally induced transformation of serpentine-like garnierite into quartz, forsterite, and enstatite occurring at about 620 °C. Powder specimens of garnierite were annealed in static air between room temperature and 1000 °C. The kinetic of the transformation was investigated by means of thermogravimetric and differential thermal analysis, and the final product was extensively characterized via micro - Raman spectroscopy and X-ray diffraction. Our study shows that serpentine-like garnierite consists of a mixture of different mineral species. Furthermore, these garnierites and their composition can provide details based on the mineralogy and the crystalline phases resulting from the thermal treatment.
topic	garnierite phase transformation TGA/DSC XRD micro-Raman spectroscopy
url	https://www.mdpi.com/2075-163X/11/2/188
work_keys_str_mv	AT arunkumar thermalannealingandphasetransformationofserpentinelikegarnierite AT michelecassetta thermalannealingandphasetransformationofserpentinelikegarnierite AT marcogiarola thermalannealingandphasetransformationofserpentinelikegarnierite AT marcozanatta thermalannealingandphasetransformationofserpentinelikegarnierite AT moniqueleguen thermalannealingandphasetransformationofserpentinelikegarnierite AT giandomenicosoraru thermalannealingandphasetransformationofserpentinelikegarnierite AT ginomariotto thermalannealingandphasetransformationofserpentinelikegarnierite
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Thermal Annealing and Phase Transformation of Serpentine-Like Garnierite

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